NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

UNION CITY prefixes in area code 731

NANPA records 14 assigned NXX blocks to rate center UNION CITY in area code 731, 3.5% of the 395 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 8 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - GA (3), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN (3), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (3). The earliest assignment on record here is 2002-07-26 and the most recent 2016-11-11. 9 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 201, 405, 517, 551 – overlay codes cover the same geography, so a rate center is served by all of them.

14 assigned blocks – 3.5% of 731
8 holders of record
9 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
731-246 Onvoy ONVOY, LLC - TN – yes yes
731-335 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2002-07-26 yes yes
731-389 Windstream PAETEC ITEL, LLC – yes yes
731-446 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 2003-03-11 no yes
731-504 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN – yes yes
731-507 JACKSON ENERGY AUTHORITY - TN 2016-11-11 yes yes
731-592 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 2005-08-16 yes yes
731-599 Lumen LEVEL 3 COMMUNICATIONS, LLC - TN – yes yes
731-698 AENEAS COMMUNICATIONS, LLC - TN – no yes
731-796 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – no yes
731-884 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – no yes
731-885 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – no yes
731-886 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
731-991 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – yes yes

The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.

Who holds the blocks

HolderBrandBlocksShare here
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 3 21.4%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN Verizon 3 21.4%
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL AT&T 3 21.4%
ONVOY, LLC - TN Onvoy 1 7.1%
PAETEC ITEL, LLC Windstream 1 7.1%
JACKSON ENERGY AUTHORITY - TN – 1 7.1%
LEVEL 3 COMMUNICATIONS, LLC - TN Lumen 1 7.1%
AENEAS COMMUNICATIONS, LLC - TN – 1 7.1%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to UNION CITY in area code 731?

14 blocks: 246, 335, 389, 446, 504, 507, 592, 599, 698, 796, 884, 885 and 2 more, all listed in the table above.

Which carriers have numbers in UNION CITY?

NEW CINGULAR WIRELESS PCS, LLC - GA (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN (3 blocks), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (3 blocks), ONVOY, LLC - TN (1 block), PAETEC ITEL, LLC (1 block), JACKSON ENERGY AUTHORITY - TN (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is UNION CITY a city?

It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.

Other rate centers in 731

All 395 prefixes in 731